Found this cool video of a modified AR drone with legs that can perch on poles, or a fence where the drone can rest!

A remote computer uses footage from a camera fitted to the drone to control flight and get the drone into the correct position for landing. Just like a real bird, the drone has to brake sharply just above its landing site and perform a controlled stall in order to touch down. Birds' legs also act as shock absorbers, and the mechanical version mimics this.